Adjustable draft means



tor and the draft means attached thereto.

" invention, such a'swill' enable othersskilled .the provision cfa' simpleandefcient appliance o'ffthis character, which is capabley of Patented Sept.. 19, 1922.

j Meana FRANK .H GERDEIVAN, OFFINDLAY, o'riro.'y n

" -AnJUsTaBLz-:naarr MEANS. y Y',

:Application filed December 11, 1920.A lSeriali-llo. 429,351,

To all whom it'mayconem; 1 p

Be it 'known that I, FRANK'H.' GERDEMA,"

a citizen of the United 'Sta-tes, yandY a resi'- dent of Findlay, in the county of Hancock and State ofOhio, have made Aan'ini'.(e'ntio'n appertaining to Adjustable'Draft yMeans; and I do hereby declare 'ltheffollowing to'fb'eY 'a full, clear,.and exact description-'of the` in the art to which Qitappertains to'jinake and use the same, reference being hadto fthe accompanying drawingaand tothe characters. of reference `marked thereon, which' l"forma partof this' specification. l This nvention relates towdraft appliances particularly intendedffor use in connection with tractors,jand' has Vforv an obj ect thereof-v vertical adjustment-,relative to the tractor to suit the height' of, draft, desired to be appliedy tothe attached'appliance and the workr to'jbe performed. This'application, with respect to thisv feature, isniiled as a cojntinuation` `of my copending ,applicationnSerial@lof-350,839, filed January 12,1920.v

A furthe; object ofinyy inventionv is the provision in connection with a draft appliance of the class described, of means for effecting an easy and rapid adjustment of the draft means laterally of the center line of draft of the tractor. so that the line of draft on the trailing appliance may be positioned at one side or the other of a row over which it may be operating.

The invention .is fully described in the following specification, and while., in yits broader aspect, it is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings. in which,-

Fig. 1 is a side elevation of a tractor and trailing appliance connected together by my adjustable draft means, parts of the tractor being removed and parts in section, and Fig. 2 is a fragmentary bottom view of the trac- Referring to the drawings, l1 designates the body frame of a tractor and 2 a supporting wheel therefor, one of which is disposed at each side of the tractor. A beam 3 projects rearwardly from the upper portion of' the tractor body 1 for horizontal swinging movements relative thereto, being p-ivoted for such movement, and having its rear end supported above the apparatus to be drawn byrodst, as'morefully disclosed in'my said former' application. fllhejforward fend Of il? the beam 3 1s provided with a `yoke' 5,y the-' arm's'of which are verticallyfspaced'a'nd pivoted tothe'tractor body at 5ft"V f' Thek 'apparatus to'be drawn im lh@ ends 0f the aXle, yandtongue 8 prollla-Ctlllg forward from the, axle centrallyj` d thereof. The tongue 8 is attachedat its yforn bythe' tractor'u l 1s illustrated, inthe'presentjyi-nstance, bya 1 trucln, which comprises the.- axle 'whe'els"f?.-

,warden-d y for' vertical pivotal ymovements `to the rear end ofafdraft -yoke`9 throughthe medium a clevis member'lQ; The 'yoke 9 isof' forked form,V having its arms p rojecty. ing' forward andoutward "indivergentfr'elation' from. the'. Central' point 'of attachment' ofy Itheftongue' thereto, and each is piv-f otally y('om'iected for vertical swinging .'mov'ements, as shown at11, to'opposite'ends of a segmental 'cross-baril@ the `)aXisof which `is y disposed 'forward' thereofi The kends ofthe lcross-bar 12 rvare, mounted forarcuaterec'iprocatorymovements'transversely'fof the tractor body' 1 in 'segmental guidesl'A formed or,"

jectiiigk fromhone end'vthe'rof "transversely and rearwardly of the tractor, and this rod has a nut 15 threaded on its outer end and in rotary engagement with a perforated ear 16 on the tractor body whereby a turning of the nut will impart longitudinal movement in one direction or the other to the rod 14 and a consequent adjustment to the crossb-ar 12. The nut 15, to facilitate a turning thereof, is provided with a crank arm 17. It is thus evident that the draft yoke 9 may be shifted in a swingingl manner transversely of the tractor body so as to dispose the line of draft on the attached tongue 8 at one side or the other of the center line of draft of the tractor.

A swinging suspending link or' member 18 connects the clevis 10 to a slide block 19 that is guided for vertical sliding movevments by the downwardly projecting arm of the yoke 5, The block 19 is carried by a rod 20, which projects up through a guide ear 21 on the yoke 5 and has an adjusting nut 22 threaded thereon and mounted for rotary but not axial movements in the earby the draft yoke.

draft desired to be applied to the tongue 8k l The `adjustment which I"` havel provided for the draft yoke and connected tongue `to the attached truck, implement, or'the f like, is an important feature, las it enables the line *d lof draft to be varied, as desired,' to suit the" `high plants it beeomes'necessary to have a yhigh c eax-ance, .and this' .can be accomplished.

lWork to be performed, or to adapt it for the apparatusy to Which attached. n VThe permissiblel vertical adjllSInent of the draft yoke 9 is important, for in cultivating'cornwor other l to from ftheltractor adjusted aCGOrdingly.'

2.1 Wish t'nnderstood that my invention .iS

not-limited to any specfe eonstructin, er: rangement, cj rj` form of the parts, as it iseapabl." 0f numerous, modieations' .andi changes,` yvithout departing from the spirit ofthe Claims.` Q

Having thus ldeseribed `my invention, what I claim asnevv andidesire to secure by Let-k v ters' VPatent, isf- 1.' In eombnatiom a ktr'aetn",` an .arcuate` lmember secured thereto for longitudinal areuate'jadjustment transverse to the tractor, j

means operabley to adjust said 1ne1'nb.er,` and a draft member pivotally trailing from the! adjustable member and having its lineof 'draft shiftedbyuan'adjustment of the-first member. v

2. VIn' eomblnationl a tractor, an arcuate -bar carried by thek tractor at the under sidev of its. bod .portion for transverse arcuate y, y

from the bar vforvertical pivotal movements relative thereto and Vhavinzlg; its line ofdraft tha-draft member;

3. In combinati movements@ vertieally. movable element.

above the rear.. e`ndof.the draftmembeiQ--a j 55 the elemental-id. member to `Cause @verdeel-.1 E adjestme-nto'f. .one Withthe other', .and irrita-reY .f connected te theeleme'ntand @pnibletOed-I guide 'for ,the .eleni'ent,conneejt ion between bia'. segmental. .cross/:bar carried tbl e .adjustmen relative thereto, means loperable to .adjust tl'iebar, a ,dr-aft member trailingwl.v

adjusted by 'adjustment 0f' th@ bar, fnd l means adjustably supporting therear end of .l

. .150' y nya tractorjla draft mem!!I ,l ber trailing` therefrom. for vertical pivotal so j j byfr ,transverse attuate" .adjusting -.rn.eveme.11ts.

with .the Center. Pointof-tl1l er@ advent@ Lof the. ben draft veli? trailing from the Y bei* 'for verticelsvinss mOi/.extrme means .operable t0 lmpert adjustlng ,movementst@ porting the rear end ofgtheyolgefforfvertiegal adjustment anclffrn jpermissiblev y lateral ,swingingmovements,`

In' testimony whereof have'heremito;v

signed my. name to this as" ecification,y

:the bar cio iaeallyrshifwte meer applied* draft 'of th yoke membetf and means S119- FRANK .GERDEMAN-f 

